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Chemical formula: B2O3
Molecular weight 465.96
Properties: Yellow heavy powder or monoclinic crystalline. Odorless. Stable in the atmosphere
Melting point (degC): 825
Boiling point (degC or atmospheric pressure) 1890
Solubility: Insoluble in hydrochloric or nitric acid. It is insoluble when dissolved in water. It turns maroon when heated, and yellow when cold.
Pure products are classified as a type (b type), d type and a type (d type).
A type is a yellow monoclinic, monoclinic crystal that has a relative density of 8.9 and an melting point of 825. It is insoluble and soluble with acid.
Type b has bright yellow to orange color, square system, relative density 8.55, melting temperature 860, soluble and insoluble in acids, insoluble when water. It is easily reduced to metal Bismuth with hydrogen and hydrocarbons.
has a cubic fluorite structure and a high oxygen ion conductivity.
Bismuth dioxide is most commonly used in electronic ceramic materials, electrolyte and optoelectronic materials as well as catalysts, high-temperature superconducting materials, catalysts, and other high-temperature superconducting materials. Bismuth dioxide is an important ingredient in electronic ceramic powder materials. It has a purity of over 99.15%. It is used mostly in zirconium oxide varistors, ceramic capacitors, and ferrite magnetic material.
What does Bismuth Oxide Bi2O3 serve?
The important metal-oxide semiconductor Bismuth dioxide (Bi2O3) has been a hot topic because of its exceptional optical and electrical characteristics, including wide band gap and high permittivity.
Bismuth oxide’s unique properties have been extensively studied and applied in a wide range of fields including fuel cells and sensor technology. It is also used in the manufacture of transparent ceramic glasses, optical coatings, ceramics, and catalysts. The industrial sector based on Bi2O3 manufacturing technology is making great strides due to the production and use of many high-quality optical fibers like erbium doped (Er) bismuthoxide fiber and highly-nonlinear bismuthoxide fibre.
Bi2O3 is attractive due to its nonlinearity, which is approximately 200 times higher than the SiO2. These nonlinear phenomena play important roles in ultrafast optical transmitting systems and all optical transmission networks. Therefore, they can be studied for all optical processing subsystems like regenerators logic gates and switches. Bi2O3 semiconductors have the advantage of compactness and integration. However, they often require temperature control and current control. They are also dynamically limited (hundreds to picoseconds) by charge carriers.
Is Bismuth Oxide Acidic Or Basic?
Pure Bi2O3 can be found in both acidic or alkaline sites. It is similar to TiO2, SnO2 & Fe2O3 and it is more acidic than these oxides.
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